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<div class="title">samples/cpp/tutorial_code/ImgProc/basic_drawing/Drawing_2.cpp</div>  </div>
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<p>An example using drawing functions</p>
<div class="fragment"><div class="line"></div><div class="line"><span class="preprocessor">#include &lt;<a class="code" href="../../d0/d9c/core_2include_2opencv2_2core_8hpp.html">opencv2/core.hpp</a>&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;<a class="code" href="../../d1/d4f/imgproc_2include_2opencv2_2imgproc_8hpp.html">opencv2/imgproc.hpp</a>&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;<a class="code" href="../../d4/dd5/highgui_8hpp.html">opencv2/highgui.hpp</a>&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;iostream&gt;</span></div><div class="line"><span class="preprocessor">#include &lt;stdio.h&gt;</span></div><div class="line"></div><div class="line"><span class="keyword">using namespace </span><a class="code" href="../../d2/d75/namespacecv.html">cv</a>;</div><div class="line"></div><div class="line"><span class="keyword">const</span> <span class="keywordtype">int</span> NUMBER = 100;</div><div class="line"><span class="keyword">const</span> <span class="keywordtype">int</span> DELAY = 5;</div><div class="line"></div><div class="line"><span class="keyword">const</span> <span class="keywordtype">int</span> window_width = 900;</div><div class="line"><span class="keyword">const</span> <span class="keywordtype">int</span> window_height = 600;</div><div class="line"><span class="keywordtype">int</span> x_1 = -window_width/2;</div><div class="line"><span class="keywordtype">int</span> x_2 = window_width*3/2;</div><div class="line"><span class="keywordtype">int</span> y_1 = -window_width/2;</div><div class="line"><span class="keywordtype">int</span> y_2 = window_width*3/2;</div><div class="line"></div><div class="line"><span class="keyword">static</span> <a name="_a0"></a><a class="code" href="../../d1/da0/classcv_1_1Scalar__.html">Scalar</a> randomColor( <a name="_a1"></a><a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a>&amp; rng );</div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Lines( <a name="_a2"></a><a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng );</div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Rectangles( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng );</div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Ellipses( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng );</div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Polylines( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng );</div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Filled_Polygons( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng );</div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Circles( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng );</div><div class="line"><span class="keywordtype">int</span> Displaying_Random_Text( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng );</div><div class="line"><span class="keywordtype">int</span> Displaying_Big_End( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng );</div><div class="line"></div><div class="line"></div><div class="line"><span class="keywordtype">int</span> main( <span class="keywordtype">void</span> )</div><div class="line">{</div><div class="line">  <span class="keywordtype">int</span> c;</div><div class="line"></div><div class="line">  <span class="keywordtype">char</span> window_name[] = <span class="stringliteral">&quot;Drawing_2 Tutorial&quot;</span>;</div><div class="line"></div><div class="line">  <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng( 0xFFFFFFFF );</div><div class="line"></div><div class="line">  <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image = <a name="a3"></a><a class="code" href="../../d3/d63/classcv_1_1Mat.html#a0b57b6a326c8876d944d188a46e0f556">Mat::zeros</a>( window_height, window_width, <a name="a4"></a><a class="code" href="../../d1/d1b/group__core__hal__interface.html#ga88c4cd9de76f678f33928ef1e3f96047">CV_8UC3</a> );</div><div class="line">  <a name="a5"></a><a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image );</div><div class="line">  <a name="a6"></a><a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>( DELAY );</div><div class="line"></div><div class="line">  c = Drawing_Random_Lines(image, window_name, rng);</div><div class="line">  <span class="keywordflow">if</span>( c != 0 ) <span class="keywordflow">return</span> 0;</div><div class="line"></div><div class="line">  c = Drawing_Random_Rectangles(image, window_name, rng);</div><div class="line">  <span class="keywordflow">if</span>( c != 0 ) <span class="keywordflow">return</span> 0;</div><div class="line"></div><div class="line">  c = Drawing_Random_Ellipses( image, window_name, rng );</div><div class="line">  <span class="keywordflow">if</span>( c != 0 ) <span class="keywordflow">return</span> 0;</div><div class="line"></div><div class="line">  c = Drawing_Random_Polylines( image, window_name, rng );</div><div class="line">  <span class="keywordflow">if</span>( c != 0 ) <span class="keywordflow">return</span> 0;</div><div class="line"></div><div class="line">  c = Drawing_Random_Filled_Polygons( image, window_name, rng );</div><div class="line">  <span class="keywordflow">if</span>( c != 0 ) <span class="keywordflow">return</span> 0;</div><div class="line"></div><div class="line">  c = Drawing_Random_Circles( image, window_name, rng );</div><div class="line">  <span class="keywordflow">if</span>( c != 0 ) <span class="keywordflow">return</span> 0;</div><div class="line"></div><div class="line">  c = Displaying_Random_Text( image, window_name, rng );</div><div class="line">  <span class="keywordflow">if</span>( c != 0 ) <span class="keywordflow">return</span> 0;</div><div class="line"></div><div class="line">  c = Displaying_Big_End( image, window_name, rng );</div><div class="line">  <span class="keywordflow">if</span>( c != 0 ) <span class="keywordflow">return</span> 0;</div><div class="line"></div><div class="line">  <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>(0);</div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div><div class="line"></div><div class="line"><span class="keyword">static</span> <a class="code" href="../../d1/da0/classcv_1_1Scalar__.html">Scalar</a> randomColor( <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a>&amp; rng )</div><div class="line">{</div><div class="line">  <span class="keywordtype">int</span> icolor = (unsigned) rng;</div><div class="line">  <span class="keywordflow">return</span> <a name="a7"></a><a class="code" href="../../dc/d84/group__core__basic.html#ga599fe92e910c027be274233eccad7beb">Scalar</a>( icolor&amp;255, (icolor&gt;&gt;8)&amp;255, (icolor&gt;&gt;16)&amp;255 );</div><div class="line">}</div><div class="line"></div><div class="line"></div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Lines( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng )</div><div class="line">{</div><div class="line">  <a name="_a8"></a><a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a> pt1, pt2;</div><div class="line"></div><div class="line">  <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; NUMBER; i++ )</div><div class="line">  {</div><div class="line">    pt1.<a name="a9"></a><a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a name="a10"></a><a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( x_1, x_2 );</div><div class="line">    pt1.<a name="a11"></a><a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( y_1, y_2 );</div><div class="line">    pt2.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( x_1, x_2 );</div><div class="line">    pt2.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( y_1, y_2 );</div><div class="line"></div><div class="line">    <a name="a12"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#ga7078a9fae8c7e7d13d24dac2520ae4a2">line</a>( image, pt1, pt2, randomColor(rng), rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(1, 10), 8 );</div><div class="line">    <a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image );</div><div class="line">    <span class="keywordflow">if</span>( <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>( DELAY ) &gt;= 0 )</div><div class="line">      { <span class="keywordflow">return</span> -1; }</div><div class="line">  }</div><div class="line"></div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Rectangles( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng )</div><div class="line">{</div><div class="line">  <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a> pt1, pt2;</div><div class="line">  <span class="keywordtype">int</span> lineType = 8;</div><div class="line">  <span class="keywordtype">int</span> thickness = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( -3, 10 );</div><div class="line"></div><div class="line">  <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; NUMBER; i++ )</div><div class="line">  {</div><div class="line">    pt1.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( x_1, x_2 );</div><div class="line">    pt1.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( y_1, y_2 );</div><div class="line">    pt2.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( x_1, x_2 );</div><div class="line">    pt2.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>( y_1, y_2 );</div><div class="line"></div><div class="line">    <a name="a13"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#ga07d2f74cadcf8e305e810ce8eed13bc9">rectangle</a>( image, pt1, pt2, randomColor(rng), <a name="a14"></a><a class="code" href="../../db/de0/group__core__utils.html#gafa99ec4acc4ecb2dc3c2d05da15d0e3f">MAX</a>( thickness, -1 ), lineType );</div><div class="line"></div><div class="line">    <a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image );</div><div class="line">    <span class="keywordflow">if</span>( <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>( DELAY ) &gt;= 0 )</div><div class="line">      { <span class="keywordflow">return</span> -1; }</div><div class="line">  }</div><div class="line"></div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Ellipses( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng )</div><div class="line">{</div><div class="line">  <span class="keywordtype">int</span> lineType = 8;</div><div class="line"></div><div class="line">  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; NUMBER; i++ )</div><div class="line">  {</div><div class="line">    <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a> center;</div><div class="line">    center.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    center.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line"></div><div class="line">    <a name="_a15"></a><a class="code" href="../../d6/d50/classcv_1_1Size__.html">Size</a> axes;</div><div class="line">    axes.<a name="a16"></a><a class="code" href="../../d6/d50/classcv_1_1Size__.html#abfe0367b32c407ddccf5ddf92667c73d">width</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(0, 200);</div><div class="line">    axes.<a name="a17"></a><a class="code" href="../../d6/d50/classcv_1_1Size__.html#a1d289dce6b5d8006a54f3ee0259fc545">height</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(0, 200);</div><div class="line"></div><div class="line">    <span class="keywordtype">double</span> angle = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(0, 180);</div><div class="line"></div><div class="line">    <a name="a18"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#ga28b2267d35786f5f890ca167236cbc69">ellipse</a>( image, center, axes, angle, angle - 100, angle + 200,</div><div class="line">             randomColor(rng), rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(-1,9), lineType );</div><div class="line"></div><div class="line">    <a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image );</div><div class="line"></div><div class="line">    <span class="keywordflow">if</span>( <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>(DELAY) &gt;= 0 )</div><div class="line">      { <span class="keywordflow">return</span> -1; }</div><div class="line">  }</div><div class="line"></div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Polylines( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng )</div><div class="line">{</div><div class="line">  <span class="keywordtype">int</span> lineType = 8;</div><div class="line"></div><div class="line">  <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i&lt; NUMBER; i++ )</div><div class="line">  {</div><div class="line">    <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a> pt[2][3];</div><div class="line">    pt[0][0].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[0][0].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[0][1].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[0][1].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[0][2].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[0][2].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[1][0].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[1][0].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[1][1].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[1][1].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[1][2].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[1][2].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line"></div><div class="line">    <span class="keyword">const</span> <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a>* ppt[2] = {pt[0], pt[1]};</div><div class="line">    <span class="keywordtype">int</span> npt[] = {3, 3};</div><div class="line"></div><div class="line">    <a name="a19"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#ga1ea127ffbbb7e0bfc4fd6fd2eb64263c">polylines</a>(image, ppt, npt, 2, <span class="keyword">true</span>, randomColor(rng), rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(1,10), lineType);</div><div class="line"></div><div class="line">    <a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image );</div><div class="line">    <span class="keywordflow">if</span>( <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>(DELAY) &gt;= 0 )</div><div class="line">      { <span class="keywordflow">return</span> -1; }</div><div class="line">  }</div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Filled_Polygons( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng )</div><div class="line">{</div><div class="line">  <span class="keywordtype">int</span> lineType = 8;</div><div class="line"></div><div class="line">  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; NUMBER; i++ )</div><div class="line">  {</div><div class="line">    <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a> pt[2][3];</div><div class="line">    pt[0][0].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[0][0].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[0][1].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[0][1].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[0][2].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[0][2].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[1][0].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[1][0].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[1][1].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[1][1].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line">    pt[1][2].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    pt[1][2].<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line"></div><div class="line">    <span class="keyword">const</span> <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a>* ppt[2] = {pt[0], pt[1]};</div><div class="line">    <span class="keywordtype">int</span> npt[] = {3, 3};</div><div class="line"></div><div class="line">    <a name="a20"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#ga8c69b68fab5f25e2223b6496aa60dad5">fillPoly</a>( image, ppt, npt, 2, randomColor(rng), lineType );</div><div class="line"></div><div class="line">    <a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image );</div><div class="line">    <span class="keywordflow">if</span>( <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>(DELAY) &gt;= 0 )</div><div class="line">       { <span class="keywordflow">return</span> -1; }</div><div class="line">  }</div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> Drawing_Random_Circles( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng )</div><div class="line">{</div><div class="line">  <span class="keywordtype">int</span> lineType = 8;</div><div class="line"></div><div class="line">  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; NUMBER; i++)</div><div class="line">  {</div><div class="line">    <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a> center;</div><div class="line">    center.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    center.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line"></div><div class="line">    <a name="a21"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#gaf10604b069374903dbd0f0488cb43670">circle</a>( image, center, rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(0, 300), randomColor(rng),</div><div class="line">            rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(-1, 9), lineType );</div><div class="line"></div><div class="line">    <a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image );</div><div class="line">    <span class="keywordflow">if</span>( <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>(DELAY) &gt;= 0 )</div><div class="line">      { <span class="keywordflow">return</span> -1; }</div><div class="line">  }</div><div class="line"></div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> Displaying_Random_Text( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> rng )</div><div class="line">{</div><div class="line">  <span class="keywordtype">int</span> lineType = 8;</div><div class="line"></div><div class="line">  <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 1; i &lt; NUMBER; i++ )</div><div class="line">  {</div><div class="line">    <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a> org;</div><div class="line">    org.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a4c96fa7bdbfe390be5ed356edb274ff3">x</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(x_1, x_2);</div><div class="line">    org.<a class="code" href="../../db/d4e/classcv_1_1Point__.html#a157337197338ff199e5df1a393022f15">y</a> = rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(y_1, y_2);</div><div class="line"></div><div class="line">    <a name="a22"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#ga5126f47f883d730f633d74f07456c576">putText</a>( image, <span class="stringliteral">&quot;Testing text rendering&quot;</span>, org, rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(0,8),</div><div class="line">             rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(0,100)*0.05+0.1, randomColor(rng), rng.<a class="code" href="../../d1/dd6/classcv_1_1RNG.html#acde197860cea91e5aa896be8719457ae">uniform</a>(1, 10), lineType);</div><div class="line"></div><div class="line">    <a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image );</div><div class="line">    <span class="keywordflow">if</span>( <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>(DELAY) &gt;= 0 )</div><div class="line">      { <span class="keywordflow">return</span> -1; }</div><div class="line">  }</div><div class="line"></div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div><div class="line"></div><div class="line"><span class="keywordtype">int</span> Displaying_Big_End( <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image, <span class="keywordtype">char</span>* window_name, <a class="code" href="../../d1/dd6/classcv_1_1RNG.html">RNG</a> )</div><div class="line">{</div><div class="line">  <a class="code" href="../../d6/d50/classcv_1_1Size__.html">Size</a> textsize = <a name="a23"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#ga3d2abfcb995fd2db908c8288199dba82">getTextSize</a>(<span class="stringliteral">&quot;OpenCV forever!&quot;</span>, <a name="a24"></a><a class="code" href="../../d6/d6e/group__imgproc__draw.html#gga0f9314ea6e35f99bb23f29567fc16e11af7b1b25521fc9b5731a97cfd13460c2a">FONT_HERSHEY_COMPLEX</a>, 3, 5, 0);</div><div class="line">  <a class="code" href="../../db/d4e/classcv_1_1Point__.html">Point</a> org((window_width - textsize.<a class="code" href="../../d6/d50/classcv_1_1Size__.html#abfe0367b32c407ddccf5ddf92667c73d">width</a>)/2, (window_height - textsize.<a class="code" href="../../d6/d50/classcv_1_1Size__.html#a1d289dce6b5d8006a54f3ee0259fc545">height</a>)/2);</div><div class="line">  <span class="keywordtype">int</span> lineType = 8;</div><div class="line"></div><div class="line">  <a class="code" href="../../d3/d63/classcv_1_1Mat.html">Mat</a> image2;</div><div class="line"></div><div class="line">  <span class="keywordflow">for</span>( <span class="keywordtype">int</span> i = 0; i &lt; 255; i += 2 )</div><div class="line">  {</div><div class="line">    image2 = image - <a name="a25"></a><a class="code" href="../../d1/da0/classcv_1_1Scalar__.html#ac1509a4b8454fe7fe29db069e13a2e6f">Scalar::all</a>(i);</div><div class="line">    <a class="code" href="../../d6/d6e/group__imgproc__draw.html#ga5126f47f883d730f633d74f07456c576">putText</a>( image2, <span class="stringliteral">&quot;OpenCV forever!&quot;</span>, org, <a class="code" href="../../d6/d6e/group__imgproc__draw.html#gga0f9314ea6e35f99bb23f29567fc16e11af7b1b25521fc9b5731a97cfd13460c2a">FONT_HERSHEY_COMPLEX</a>, 3,</div><div class="line">             <a class="code" href="../../dc/d84/group__core__basic.html#ga599fe92e910c027be274233eccad7beb">Scalar</a>(i, i, 255), 5, lineType );</div><div class="line"></div><div class="line">    <a class="code" href="../../d7/dfc/group__highgui.html#ga453d42fe4cb60e5723281a89973ee563">imshow</a>( window_name, image2 );</div><div class="line">    <span class="keywordflow">if</span>( <a class="code" href="../../d7/dfc/group__highgui.html#ga5628525ad33f52eab17feebcfba38bd7">waitKey</a>(DELAY) &gt;= 0 )</div><div class="line">       { <span class="keywordflow">return</span> -1; }</div><div class="line">  }</div><div class="line"></div><div class="line">  <span class="keywordflow">return</span> 0;</div><div class="line">}</div></div><!-- fragment --> </div><!-- contents -->
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